| details |
Berriasian |
Valanginian |
Canada(NWT,Franklin) |
McGregor,D.C. Triassic, Jurassic and Lower Cretaceous spores and pollen of Arctic Canada. |
1965 |
| details |
Early Jurassic |
|
USSR(Permsk Oblast) |
Dubeykovskiy,S.G. et al. Lower Jurassic sediments in the Upper Kama Basin |
1965 |
| details |
Liassic |
|
USSR(Franz Josef Land) |
Dibner,V.D. et al. Data on geology and biostratigraphy of Upper Triassic and Lower Jurassic deposits of Franz-Joseph Land. (In: Symposium of Articles on Arctic Geology. B.V.Ikatshenko, editor) |
1959 |
| details |
Early Jurassic |
|
USSR(Yakut ASSR) |
Bolkhovitina,N.A. Spore-pollen complexes from the Mesozoic deposits of the Vilyuy Basin and their importance for stratigraphy. |
1959 |
| original |
Early Jurassic |
|
USSR(Siberia) |
Bolkhovitina,N.A. Atlas of spores and pollen from Jurassic and Lower Cretaceous deposits of the Vilyuysk Basin. |
1956 |